Anyone hear this birdie on 27.341 lsb?

[357]

It seems to be everywhere...wtf?

 

[357]

View attachment vy2hf.ddns.net_2022-11-27T16_23_27Z_27342.98_lsb.wav

 

[Handy Andy]

Sounds like you're picking up someone's very poorly shielded Network Hub distribution box, one of those that produce the WI-FI and also the Hardline cable - this rattle ring effect is what I hear from my own box if I put the radio too close to it - it leaks into the audio side, not as a carrier but as a pure noise the CB will gather being so close to the box.

 

[357]

Sounds like you're picking up someone's very poorly shielded Network Hub distribution box, one of those that produce the WI-FI and also the Hardline cable - this rattle ring effect is what I hear from my own box if I put the radio too close to it - it leaks into the audio side, not as a carrier but as a pure noise the CB will gather being so close to the box.

its all over north america, I do hear it on my station but the online sdr's hear it too

 

[Handy Andy]

Then were picking up some kind of sat-link errant signal - this may be what local towers need to "transmit" but on another frequency for a "star-link" - you can hear some type of telemetry within this noise.

Does the S-meter move to show some type of proximity?

Wonder if theres' more to these that just telemetry links.

 

[357]

ya not sure but guess they'll be shutting us down next

 

[Shadetree Mechanic]

I have nothing above the noise floor on that frequency in Delaware.

 

[Eldorado828]

I just turned on my station and no unusual noise here either.

 

[AudioShockwav]

Just dialed up .341 nothing here but noise floor.
That's strange......


73
Jeff

 

[FlatlandBusa]

There is nothing on that frequency in South Central Nebraska.

Usually birdies like that are caused by switching power supplies.

 

[Handy Andy]

When you mention SDR's where are you locating - finding them on the net?

 

[d4xycrq]

Dead silent here, in SE PA. I see one at 27.700.70, though.

 

[999]

When you mention SDR's where are you locating - finding them on the net?

http://kiwisdr.com/public/

 

[Handy Andy]

Thanks!


as of 11:55UTC - nothing at 27MHz ATM

But that's in Texas - where everything is bigger...

So this brings me back to the errant signal - birdie, that, to me, I hear a shift like telemetry is occurring at that time of the recording.

Getting back to this real quick - I've seen (more heard) "birdies" from R/C cars and even cheep-azz drones for kids used to "spy" on people - so if you see this again, look outside - you might have something buzzing around your house.

 

[secret squirrel]

Handy Andy, I am betting you can answer this question. It comes to mind because of the current Ukraine war happening. The Duga OTH Radar Array at Chernobyl was said to produce massive interference when powered up. I had watched a documentary on the Woodpecker. The signal was supposed to be extremely low a 10 HZ if I recall correctly. Due to the nature of the OTH Radar and the atmosphere, with the massive power involved was harmonics produced all over the lower bands. It was said the system was shut down in the 1980s. Thank you in advance, this is mainly a curiosity on my part.